Trimming machine



June 3, 1930.

s; 1. FINN TRIMMING MACHINE Filed July 17, 1928 2 Sheets-Sheet 1 June 3,1930. I 1 5. J. FINN 1,761,011

I TRIMMING MACHINE Filed July 17, 1928 2 Sheets-Sheet 2 7 tion of thewearer.

Patented June 3, 1930 SIDNEY J'. FINN, OF BEVERLY, MASSACHUSETTS,ASSIGNOR TO 'UNITECD' SHOE MA- CHINERY CORPORATION, OF PATERSON, -1\TEWJERSEY, ACORIPORATION NEW JERSEY Application filed m 17,

shoes.

A. type of arctic overshoenowin vogue for women is provided with a culfatthe top adapted to be turned up or down at the op- The cuffs of sucharctics are commonly made of. two layers of woven, rubberized fabric,for example, plush, or corduroy, and they are attached to the tops ofthe uppers by lapped seams so that they must I be bent or folded whenturned down.

It is customary to provide the upper of'an overshoe of the typeabovedescribed with a full lining of woven fabric and witha'suppleinental semi-lining of rubberized knitted fabric, comprising twoupstanding tongues or strips, one arranged at the back of the shoe, andthe other arrangedion the front or bellows portion. These tongues orstrips are attached to the inner surface of the full lining by cement,and to insure a neat appearance at the top of the shoe they are trimmedflush or parallel with the top of the upper after they have beenattached. These. trimming operations have heretofore been. performedwith scissors. Y

Accordingly, an object of the present in vent-ion is to provide amachine by which these and similar trimming operations may be readilyandconvenientlyperformed. A

problem peculiar to these trimming operations is that the bend or foldof the cuff isin the way of trimming the back lining close to the rootof the cuff, whereas no portion of the cuff lies adjacent to the frontlining that projects above the top edge of the bellows portion of theupper. Again, as to the front lining it is desirable to sever thesurplus material flush with'the upper edge of the bellows portion, butas to the back lining it is desirable to sever the surplus materialalong a line Well below the top of the fold of the cuff so that no edgeof this lining portion will be visible even when the cuff is turneddown.

To meet the dissimilar conditions above described, so that one machinemay be used to perform both trimming operations re ferred to, a featureof the present invention Tamarind MACHINE 1928. Serial No. 293,376.

consists in a novel combination comprising the comb nation w th trimmingmechanlsm of work-supporting means provided with a plurality ofwork-supporting portions and mechanism for shifting the work-supportingmeans to place those portions alternatively in dissimilar positions tocooperate with the trimming mechanism. As illustrated, theworksupporting mechanism comprises a block adapted to enter the top ofa-shoe and provided with two work-supporting surfaces either of whichmay be placed in a position to cooperate with a pair of'rotary shears,one work-supporting surface being arranged to support the work at aconsiderable angle of inclination relatively to the plane of theshearing cutto trim the lining portion that liesinside a cuff, while theother isarranged to support the work substantially at right angles tothe plane of the shearing cut to trim the lining portion that projectsfrom the bellows portion of the upper. V

The invention also provides manually operative mechanism'by whichthework-supporting means may be shifted at willto place either of thework-supporting surfaces of the block inoperative position so that firstone and then the other of these surfaces may be with one handlingthereof.

7 Another feature 'ofthe invention consists in a novel type of trimmingguard formed and arranged to prevent injuryof the cuff portion by thetrimming cutters and at the same time to permit, severing the backlining, inside the cull, on a line below the fold of I the cuff. Asshown, this guard comprises a thin circular disk arranged in front ofoneof theshearing cutters tofend the fold of the cufi'br'the previouslytrimmed edge .of the bellows portion, as the case may be, from that oneof the cutters, the guard being rotatably mounted so that itsedge willhave rolling contact with the material being trimmed.

The features hereinabove mentioned and others are hereinafter describedand claimed. Referring to the drawings, v V Fig; 1 is a side elevation,partly broken away,'of a trimming machine embodying the several featuresof this invention, the worksupporting means being shown 1n the positionrequired for trimming the back lining of the position shown in Fig. 1;and Fig. 4 1s an elevation on a larger scale showing the shearingmembers and parts located adjacent to them, the assemblage correspondingto the showing in Fig. 1. v

The illustrated machine is of the same general type that more ful yshown and described in Letters Patent No. 1,659,595, granted February21, 1928, on an application filed in my name. For purposes ofcomparison, the frame 10, cutter shafts 12 and 14, rotary lappedshearing cutters 16 and 18, presser roll 20, feed roll 22 and anelectric motor 24 for driving the cutter shafts are substantially likethe corresponding elements described in said patent. The cutter 16,being thin and sharp, does the cutting while the material to be severedis supported adjacent to the plane of the'cut by the less acute rim ofthe cutter 18 which is in front ofthe cutter 16. The cutter shafts 12and 14 are connected by gearing (not shown) that causes them to rotatein opposite directions. The feedroll 22 is fixed to the shaft 14, butthe presser roll 20, while carriedby the shaft 12, is not keyed to theshaft but may turn relatively thereto so as to turn consistently withthe progress of the work rather than at a rotational speed equal to thatof the shaft 12. The presser roll 20 is in tie form of a thin, annularflange while the feed roll 22 is prov vided with a groove thatconstitutes a coun terpart of the flange so that the surplus materialsevered by the cutters 16 and 18 will be gripped as shown in Fig. 4 andbe fed away from the severing locality.

The arctic overshoe shown in the drawings is provided with an upper 26made of textile fabric impregnated with a water-proofing compound. Acuff 28 comprising a plurality of layers of relatively thick textilematerial, such as plush is attached to the top margin of the upper 26 inlapped relation thereto, the seam being indicated at 30 in Fig. 4.Overshoes of this type are commonly worn with the cuffs turned down asshown in the drawings but they may be worn with the cuffs turned up. Itis common to line the uppers at the front and backwithstrips or tongues32 and 34 of knitted fabric. The strip or tongue 32 is from two to threeinches wide at the top and is cemented to the bellows portion of theshoeupper, while the strip or tongue 34 is usually about two inches wide atthe top and is cemented to the inner surface of the back of the shoeupper. These strips or tongues 32 and 34 initially project above the topof the shoe to provide for trimming them in conformity therewith.Accordingly, each shoe has two projecting surplus portionsw of liningmaterial that must be severed after the shoe is otherwise nearly, if notquite, finished.

The machine already described in part is provided with a novel type ofWork-supporting means by which the aforesaid trimming operations may beaccomplished rapidly and accurately with one handling of each shoe. Ablock 36 of a shape and size that enables it to be readily inserted intoa shoe is movably attached to the frame 10 so that it may be placed indifierent positions to cooperate with the trimming mechanism. In theform shown, the supporting block 36 is provided with a substantiallyhorizontal work-supporting surface or bed 38 for use when trimming thefront lining portion 32 and with an inclined work-supporting surface 40for use when trimming the back lining portion 34. As shown, this blockis fliTlXECl to the front end of a horizontal rock-shaft 42 journaled ina bracket 44 affixed to the under side of the frame 10. The surfaces 38and 40 are diametrically oppositeeachother with regard to the axis ofthe ,rockeshaft, and the arrangementof the elements is such that thesesurfaces may be placed alternatively in front of the trimming mechanismand in position to cooperate therewith by turning the rock shaft 180.Preferably the surfaces 38 and 40 are convex, as shown in Fig. 3, tofacilitate feeding the work, and the portion having the surface 40,which is used when trimming the back lining 34, is preferably relativelynarrow to avoid distorting the curvature of the cuff 28 around the back.

The machine is also provided with manually operative mechanism forturning the rock-shaft 42 back and forth to invert the block 36. Atorsion spring 46 surrounds the rock-shaft 42 and serves to maintain theblock normally in one of its operative positions. One end of this springengages a collar 48 affixed to the rock-shaft, while the other endengages a fixture, for example, a portion of the bracket 44. A pinion 50affixed to the rear end of the rock-shaft is engaged by a gear segment52 affixed to a rock-shaft 54 journaled in bearings formed in a bracket56. A collar 58 affixed to the rear end of the shaft 54 is provided withtwo shoulders one of which is arranged to engage a fixed pin 60 as shownin Fig. 1, while the other is arranged to engage the same pin as shownin Fig. 2. The collar 58 and the pin 60 thus limit the turning movementof the rockshaft 54 so that the turning movement of the block 36 will belimited to 180 and thereby register the surfaces 38 and 40 of the blockin .in Fig. 2. I supports the treadle in a raised position detheirrespective operative pesitions. An arm 62 afiixefdto the rook-shaft 5.4rovides an operating connection with a figxible wire cable 64 thatextends through a flexiblemetallic guide tube .66 to an operatingrtreadle 68. The framelO is mountedbn the top of a hollow, telescopicsup-porting column 70 the lower section of which is'providedwith apedestal and with a fulcrum 72. for the treadle 68. Theoperating .cable6% and its guide tube 66 are arranged to extend through the column 70.The lower end-of the operating cable64c',(see Fig. 1) extends through atermined by an adjustable abutment 8O afhxed to the column- 7O in aposition where it will be engaged byan upper surfiaee oi the treadle. V

The Workesupporting block is normally maintained in the position shownin Figs. '1,

3 and 4 by the springAfi, and the treadle .68 is normally maintained inits raised'position as shown in Fig. 1. Accordingly, the inclinedsupporting-surface 40 of the bloc]: 3.6 is maintained in front ofthecntter l8and adjacent to the trimming locality. Assuming: that thecutters 1.6 and 18 are rotating and that-the operator is about to trimoff the surplus pori a of he k i ing-34 f an etershoe, he places. theshoe onthe block 36 as shown in Fig. 1, ,sohhat the back of the shoeisinelinedat a steep angle'relatively to the ventical plane of theshearing cut, The ,cntters are thus na l d o e e the strip a ehg a l nebel w t bend or fold o the enfi h i1: lustrated in Fig.4 so that.thetrimmededge o t e li ng Wil h oncealed-by t e e d of the cuff.*While theltrimming is in progress the operator may assist orretard thefeeding of the shoe by manipulation thereof. Having comp ted he trhhiihg .ef t e lin .i h e p rat tr c the shoe .frhhi the tt rs, d pr sthe trea ll 6 4 three h sho o hppe mest a sh wn iiig; 2., nd p e nt th fe tlin g erti n 32 he th tri m ng mecha ism- T.e ho izontal o k-s pprting su ac .38. of t ebleick .6 is n w i i tre -ef hdlih registerwiththe trimming se ers and supports the :l' h g parties 2 .ihe Plan at.r s ahgles tofthe Plane ett e hearing uti'lhe tepe ef the bellowsportion of the i ppermayfnow he P ce dja en te thei tte t cutter 6 o tat t efm 'lihihg 2-Wi 1 he se ered flu h with th edge, the ehrp m er alas hge se d y the fee tell and the presser roll 2. .345 tehmerhy .dfiqliib larrangement comprising a freely rotatable ir i k 4 t e rim o "edgof whieh rolls .on the material to .be trimmed while the fr ace th fengages and, gu d s th e d. ft ei fi 28 r t e p evio y r mmed ed e o b le p r m s the easeihe be- A h n, h i k 8.4 p vide with a st m 0i mnaledin he n at he re nd of an arm .86 mounted on a horizontal piv- 0t pin 88. The pivot pin 88.,extends'through a, stationary supporting beacketsecured to one Side f th frame 0-hy e e empi s ew 4:, he bra ket havi ge herizente r sl F r vid her r gister" ing the diSk-g84 with the rim ofthe lower outter 8.- A l gh c mpres n pring 8 *3) i rrange i a seek tform d hears 8 and i upperend e segeihst unde su face f h b t 2te-idepne s-the di k 84 with a light pressure. of h d sk y be egu at yat ad us hrew ca i y th m 6ene1 arrahgedte hear on an pp r ce 9theracket .92- In. prac i e e e ew 0.0 heh be adjusted 0- Pl e the om ofth disk 8. t erh erthe level th interse tion of thet mm n eutters. Thedisk stands in frent of the out:

ter 16in lapped relation thereto and eovers nearly the entire area ofthis gutter, but is preferably offset toward the feeding-in side i .ofthe cutters as clearly shown in Fig. 3 so that the verticaldiameter ofthe disk will register with the point of interseetionof the eutter wherethe actual trimming takes Place.

Again, the axis .of-the diskis slightly skewed (see Fig. 4 to providefor closetrimming. The margin of the .disk 84; is very thin to per v.mitthe hen the eui 2 or th lt p edge of th he 'l we perth 0f e ppe 26., athe ease mayb o app o c e rl f n qu t to't e Sh ar ng p n b t at he em te J The initial.- .level the di k' s not pe m any eleme t f the shoe,egeept the surplns portions w of the lining portions'torunloetween thecutters.

The pivotal mo ntingnof the arm-86 and the e f c ef't e pring ca e he ds 84 to press the work against the rim ofthe cutter -18. Consequently,thiseutter and the disk .84 constitute a work-feeding .coupleofwhich thecutter applies the feeding lefiort while :1

th sk pplie th s pping p es u e- ThL S, while this couple acts on thework. in fr t-0t the u er l6 th 'fee i g e p '22, 2O acts .on thesevered pertions w behind that cutter. I 1

Having h s de c ibed my inveatien', h I elaim a n w deeir te eee 1ie"byl e er l eht f h Un d ates is;

. A trimm .maeh n c mprising t m rh hg heeehehiem, the ner -s ppertimeans provided with a plurality of Work supporting portions, saidWorlcsupporting means bein'g movable to place said portionsalternatively in dissimilarpositions to co operate with said trimmingmechanism.

' 2. A trimming machine comprising mechanism arranged to sever amarginal portion of sheet material projecting from the top of a shoe,Work-supporting means formed and ar-- ranged'to project into a shoe andprovided with Work-supporting surfaces an'gularly related to each other,and mechanism for shifti-ng said means to place said surfacesalternatlvely 1n 130311210115 to cooperate with said severing mechanlsm.

3'. Atrlmmmg machine comprising coop- 'erative shearing cutters" andmechanism for operating "them, Work-supporting means formed and arrangedto project into a shoe said means being provided With Work-supportmgsurfaces angular-1y related to each other, and mechanism for shiftingsaid means to place said surfaces alternatively in positions tocooperate with said shearing cutters. I

4. A trimming machine comprising trimming mechanism, a shaft,Work-supporting means affixed to'said shaft and provided With place oneor another of said surfaces in position'to cooperate with said cutters.

.6.- A trimming machine comprising trimming mechanism, a rock-shaft, ablock affixed to said rock-shaft and provided with a plurality ofWork-supporting surfaces dissimilarly related to the axis of therock-shaft, and mechanism for turning said rock-shaft to place saidsurfaces alternatively in positions to cooperate'With said trimmingmechanism.

7 A trimming machine comprising trimming mechanism, a rock-shaft, ablock affixed to, said rock-shaft, said block being formed and arrangedto enter a shoe and having Work-supporting. surfaces diametricallyopposite relatively to the axis of said rockshaft, and mechanism forturning said rockshaft to place said surfaces alternatively in positionsto cooperate with said trimming mechanism. V

8. A trimming machine comprising trimming mechanism, a movableWork-supports ing member formed to enter a shoe to support the upperthereof, a treadle, and mechanism operated by said treadle to place saidWorksupporting member in different positions to cooperate With saidtrimming mechanism in performing trimming operations on different partsof the shoe.

9. A trimming machine comprising trimming mechanism, an invertibleWork-supporting member pivotally supported adjacent to said trimming Vmechanism and having Work-engaging portions diametrically opposite eachother With regard to the pivotal axis of said member, and manuallyoperated fmechanism for inverting said member to 11. A trimming machinecomprising trim-'- ming mechanism, a work-supporting member arranged toturn about an axis and formed to project into a shoe, said member havingdissimilarly arran ed Work-engaging portions, manually operatedmechanism for turning said member about said axis, and means arranged toregister said portions individually in cooperative relation to saidtrimming mechanism.

12. A trimming machine comprisingtrimming mechanism, a Work-supportingmember arranged to turn about a horizontal axisand formed to projectinto a shoe to support the upper thereof, said member having a surfacearranged to support one portion of the upper in an inclined plane andanother surface arranged to support another portion of the upper inanother plane, and manually operated mechanism for turning said memberabout said axis to place said surfaces alternatively in cooperativerelation to said trimming mechanism.

18. A trimming machine comprising trimming mechanism, a Work-supportingmember arranged to turn about a horizontal axis and formed to projectinto a shoe to support the upper thereof, saidmember having a surfacearranged to support one portion of the upper in a horizontal plane andanother surface arranged to support another portion of the upper inanother plane, and manually operated mechanism for turning said memberabout said axis to place said surfaces alternatively in cooperativerelation to said trimming mechanism.

14. A trimming machine comprising trimming mechanism, constructed andarranged to execute a shearing cut, a Work-supporting member arranged toturn about an axis and formed to project into a shoe to support the isothe shearing cut and another surface arranged to support another portionof the upper in another angular relation to saidplane, and manuallyoperated'mechanism for turning said member about said axis to place said7 name to this specification surfaces alternatively in cooperativerelation to said trimming mechanism. 7 15. A cutting machine comprisinga rotary power-driven work-supporting member formed and arranged toenter a shoe, a cutter arranged to cooperate therewith to sever edge, acutter arranged to cooperate with said edge to sever sheet materialwith'a shearing out, means for operating said cutter, and a circularrotary guard arranged in, front of said" cutter, said guardbeingspring-pressed toward said power-driven member to develop awork-feeding action by the latter.

In testimony whereof I have signed my SIDNEY J. FINN.:

a marginal portion of sheet material pro- 7 jecting beyond the top ofthe shoe, means for g operating said cutter, and a rotary disk guardsarranged in front of said cutter, the rim of said guard being arrangedto roll on said marginal portion and to press the latter against saidwork-supporting member.

Y 16. A trimming machine comprising work- 7 supporting means formed andarranged to enter a shoe provided with adownturned cufi' at the top ofthe upper, a cutter arranged to sever lining material projecting fromthe upper inside the fold of the cuff, mechanism for operating saidcutter, and a" circular disk guard the rim of which is arranged toengage the material being severed and a face of which is arranged tofendthe fold of the cuff from said cutter so that said lining materialmay be severed on a line belowthe fold of the cuff.

17 A cutting machine comprising a rotary power-driven work-supportingmember having a shearing edge, a rotary disk guard the rim of which isarranged to'roll on sheet mawhich is formed and arranged to enter thetopi of a shoe, means for driving'said cutters, a

work-support. arranged in front ofj one of,

tcrial lying on said member, means to causesaid guard to maintainpressure against said member, a cutter arranged behind said guard tocooperate with said shearing edge, and

means for operating said cutter.

18. a A cutting machine comprising tworotary coaxial work-feeding.members, two presser rolls arranged to cooperate with sald membersrespectively to grip anelement of sheet material,;one of said feedingmembers having a. shearing edge between said presser rolls, acutterarranged'to cooperate with said edge to sever the 'sheet material with ashearing cut, andmeans for operating. saidcutter. I

19. A lining-trimmingmachine comprising a pan of rotary shearingcuttersone of said cutters and formed to enter the top of the shoe, Vandarotarydisk guard arranged in front of and in lapped relation to theother one of said cutters to. prevent the top of the shoe from runningbetween the cutters while a projecting portion iof lining mater al s"being severed by the cutters.

. 20. A cutting machine comprising a rotary v power-driven" memberhaving a shearing" V so I

